Most Of The Evils Of Life Arise

No One Is Ignorant That There Are Two Avenues By Which Opinions Are Received Into The Soul, Which Are Its Two Principal Powers: The Understanding And The Will.

Il N'est Pas Certain Que Tout Soit Incertain. (translation: It Is Not Certain That Everything Is Uncertain.)

It Is Not Good To Be Too Free. It Is Not Good To Have All One Wants.

If We Regulate Our Conduct According To Our Own Convictions, We May Safely Disregard The Praise Or Censure Of Others.

A Few Rules Include All That Is Necessary For The Perfection Of The Definitions, The Axioms, And The Demonstrations, And Consequently Of The Entire Method Of The Geometrical Proofs Of The Art Of Persuading.